rust/src/test/ui/abi/issues/issue-62350-sysv-neg-reg-counts.rs

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// run-pass
#![allow(dead_code)]
#![allow(improper_ctypes)]
// ignore-wasm32-bare no libc to test ffi with
#[derive(Copy, Clone)]
pub struct QuadFloats { a: f32, b: f32, c: f32, d: f32 }
mod rustrt {
use super::QuadFloats;
#[link(name = "rust_test_helpers", kind = "static")]
extern {
pub fn get_c_exhaust_sysv64_ints(
_: *const (),
_: *const (),
_: *const (),
_: *const (),
_: *const (),
_: *const (),
_: *const (),
h: QuadFloats,
) -> f32;
}
}
fn test() {
unsafe {
let null = std::ptr::null();
let q = QuadFloats {
a: 10.2,
b: 20.3,
c: 30.4,
d: 40.5
};
assert_eq!(
rustrt::get_c_exhaust_sysv64_ints(null, null, null, null, null, null, null, q),
q.c,
);
}
}
pub fn main() {
test();
}